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Case study · Humanitarian hub · Banki, Borno State
Solar hybrid power for a humanitarian hub in Banki
122.8 kWp of solar and 921.6 kWh of storage for a humanitarian hub in Banki, built around the panels already on the roof.
Solar
122.8 kWp
Battery storage
921.6 kWh
Air conditioners
About 60
Commissioned
Feb 2025
Rooftop solar at one of the eight Borno hubs.
What it powers at the humanitarian hub in Banki
The hub has a main guest house and an extension, with offices for humanitarian staff. It runs about 60 air conditioners, plus water heaters, kitchen equipment, fridges and freezers, lighting, internet and water pumps.
How we split the loads
We wired the hub into two circuits, so the things that matter most never go off.
Critical loads: always on
Lights, fans, computers, internet, fridges and security run on the battery 24 hours a day.
Heavy loads: smart control
Air conditioners, water heaters and kitchen equipment switch off when the battery drops to 40% and come back on at 60%.
What we did
✓ Kept the 52.8 kWp of panels already on the roof and joined them to the new system
✓ Added 112 new JinkoSolar bifacial panels (70 kWp)
✓ Installed 3 Deye 50 kW hybrid inverters and 15 battery racks in a temperature-controlled power room
✓ Ran the system at full load for 48 hours before handover
Full equipment list
• 122.8 kWp: 112 × JinkoSolar 625 Wp bifacial panels (70 kWp new) plus 52.8 kWp of existing panels
• 150 kW inverter capacity: 3 × Deye 50 kW high-voltage hybrid inverters
• 921.6 kWh storage: 15 × Deye 61.44 kWh high-voltage battery racks
• Off-grid hybrid with generator backup
• Remote monitoring on DeyeCloud
Brands used: Deye · JinkoSolar
How the load control works
We sorted every circuit in the hub with the client's technical team. Critical loads sit on the battery circuit and never go off. Heavy loads sit on a separate, controlled circuit. The system runs everything from full battery down to 40%. At 40%, it switches the heavy loads off and waits for the next morning sun. At 60%, it turns them back on. The generators stay as a manual backup, so the hub team can see and manage how much energy the hub uses.
Part of an eight-hub programme
See the other hubs: Maiduguri · Bama · Monguno · Dikwa · Gwoza · Ngala · Damasak
See the whole programme →
Running a facility on generators?
Tell us about your loads. We'll visit, measure and size a system that keeps the important things on.